public Bitmap GetBitmap(int subsample, int align)
{
if ((Width == 0) || (Height == 0))
{
throw new SystemException("Image can not create bitmap");
}
int swidth = ((Width + subsample) - 1) / subsample;
int sheight = ((Height + subsample) - 1) / subsample;
int border = (((swidth + align) - 1) & ~(align - 1)) - swidth;
Bitmap bm = new Bitmap();
bm.Init(sheight, swidth, border);
bm.Grays = (1 + (subsample * subsample));
//for (int blitno = 0; blitno < Blits.Count; blitno++)
Parallel.For(
0,
Blits.Count,
blitno =>
{
JB2Blit pblit = GetBlit(blitno);
JB2Shape pshape = GetShape(pblit.ShapeNumber);
if (pshape.Bitmap != null)
{
bm.Blit(pshape.Bitmap, pblit.Left, pblit.Bottom, subsample);
}
});
return(bm);
}
public Bitmap GetBitmap(Rectangle rect, int subsample, int align, int dispy)
{
if ((Width == 0) || (Height == 0))
{
throw new SystemException("Image can not create bitmap");
}
int rxmin = rect.Right * subsample;
int rymin = rect.Bottom * subsample;
int swidth = rect.Width;
int sheight = rect.Height;
int border = (((swidth + align) - 1) & ~(align - 1)) - swidth;
Bitmap bm = new Bitmap();
bm.Init(sheight, swidth, border);
bm.Grays = (1 + (subsample * subsample));
for (int blitno = 0; blitno < Blits.Count;)
{
JB2Blit pblit = GetBlit(blitno++);
JB2Shape pshape = GetShape(pblit.ShapeNumber);
if (pshape.Bitmap != null)
{
bm.Blit(pshape.Bitmap, pblit.Left - rxmin, (dispy + pblit.Bottom) - rymin, subsample);
}
}
return(bm);
}
protected override void CodeAbsoluteLocation(JB2Blit jblt, int rows, int columns)
{
if (!_GotStartRecordP)
{
throw new DjvuFormatException("Image no start");
}
int left = CodeNum(1, _ImageColumns, _AbsLocX);
int top = CodeNum(1, _ImageRows, _AbsLocY);
jblt.Bottom = top - rows;
jblt.Left = left - 1;
}
public virtual int AddBlit(JB2Blit jb2Blit)
{
if (jb2Blit.ShapeNumber >= ShapeCount)
{
throw new ArgumentException("Image bad shape");
}
int retval = _blits.Count;
_blits.Add(jb2Blit);
return(retval);
}
public Bitmap GetBitmap(Rectangle rect, int subsample, int align, int dispy, List <int> components)
{
if (components == null)
{
return(GetBitmap(rect, subsample, align, dispy));
}
if ((Width == 0) || (Height == 0))
{
throw new DjvuFormatException(
$"Image is empty can not be used to create bitmap. Width: {Width}, Height {Height}");
}
Verify.SubsampleRange(subsample);
int rxmin = rect.Right * subsample;
int rymin = rect.Bottom * subsample;
int swidth = rect.Width;
int sheight = rect.Height;
int border = (((swidth + align) - 1) & ~(align - 1)) - swidth;
Bitmap bm = new Bitmap();
bm.Init(sheight, swidth, border);
bm.Grays = (1 + (subsample * subsample));
for (int blitno = 0; blitno < Blits.Count;)
{
JB2Blit pblit = GetBlit(blitno++);
JB2Shape pshape = GetShape(pblit.ShapeNumber);
if (pshape.Bitmap != null)
{
if (bm.Blit(pshape.Bitmap, pblit.Left - rxmin, (dispy + pblit.Bottom) - rymin, subsample))
{
components.Add((blitno - 1));
}
}
}
return(bm);
}
public Bitmap GetBitmap(int subsample, int align)
{
Verify.SubsampleRange(subsample);
if ((Width == 0) || (Height == 0))
{
throw new DjvuFormatException(
$"Image is empty and can not be used to create bitmap. Width: {Width}, Height {Height}");
}
int swidth = ((Width + subsample) - 1) / subsample;
int sheight = ((Height + subsample) - 1) / subsample;
int border = (((swidth + align) - 1) & ~(align - 1)) - swidth;
Bitmap bm = new Bitmap();
bm.Init(sheight, swidth, border);
bm.Grays = (1 + (subsample * subsample));
for (int blitno = 0; blitno < Blits.Count; blitno++)
//Parallel.For(
// 0,
// Blits.Count,
// blitno =>
// {
{
JB2Blit pblit = GetBlit(blitno);
JB2Shape pshape = GetShape(pblit.ShapeNumber);
if (pshape.Bitmap != null)
{
bm.Blit(pshape.Bitmap, pblit.Left, pblit.Bottom, subsample);
}
//});
}
return(bm);
}
public PixelMap GetPixelMap(ColorPalette palette, int subsample, int align)
{
Verify.SubsampleRange(subsample);
if ((Width == 0) || (Height == 0))
{
throw new DjvuFormatException(
$"Image is empty and can not be used to create bitmap. Width: {Width}, Height {Height}");
}
int swidth = ((Width + subsample) - 1) / subsample;
int sheight = ((Height + subsample) - 1) / subsample;
int border = (((swidth + align) - 1) & ~(align - 1)) - swidth;
PixelMap pixelMap = new PixelMap(new sbyte[swidth * sheight * 3], swidth, sheight);
for (int blitno = 0; blitno < Blits.Count; blitno++)
//Parallel.For(
// 0,
// Blits.Count,
// blitno =>
// {
{
JB2Blit pblit = GetBlit(blitno);
JB2Shape pshape = GetShape(pblit.ShapeNumber);
Pixel color = palette.PaletteColors[palette.BlitColors[blitno]];
if (pshape.Bitmap != null)
{
pixelMap.Blit(pshape.Bitmap, pblit.Left, pblit.Bottom, color);
}
//});
}
return(pixelMap);
}
protected virtual void CodeRelativeLocation(JB2Blit jblt, int rows, int columns)
{
if (!GotStartRecordP)
{
throw new SystemException("Image no start");
}
int bottom = 0;
int left = 0;
int top = 0;
int right = 0;
if (_encoding)
{
left = jblt.Left + 1;
bottom = jblt.Bottom + 1;
right = (left + columns) - 1;
top = (bottom + rows) - 1;
}
bool new_row = CodeBit((left < _lastLeft), _offsetTypeDist);
if (new_row)
{
int x_diff = GetDiff(left - _lastRowLeft, rel_loc_x_last);
int y_diff = GetDiff(top - _lastRowBottom, rel_loc_y_last);
if (!_encoding)
{
left = _lastRowLeft + x_diff;
top = _lastRowBottom + y_diff;
right = (left + columns) - 1;
bottom = (top - rows) + 1;
}
_lastLeft = _lastRowLeft = left;
_lastRight = right;
_lastBottom = _lastRowBottom = bottom;
FillShortList(bottom);
}
else
{
int x_diff = GetDiff(left - _lastRight, rel_loc_x_current);
int y_diff = GetDiff(bottom - _lastBottom, rel_loc_y_current);
if (!_encoding)
{
left = _lastRight + x_diff;
bottom = _lastBottom + y_diff;
right = (left + columns) - 1;
top = (bottom + rows) - 1;
}
_lastLeft = left;
_lastRight = right;
_lastBottom = UpdateShortList(bottom);
}
if (!_encoding)
{
jblt.Bottom = bottom - 1;
jblt.Left = left - 1;
}
}
protected virtual int CodeRecordB(int rectype, JB2Image jim, JB2Shape xjshp, JB2Blit xjblt)
{
Bitmap bm = null;
int shapeno = -1;
JB2Shape jshp = xjshp;
JB2Blit jblt = xjblt;
rectype = CodeRecordType(rectype);
switch (rectype)
{
case NewMark:
case NewMarkImageOnly:
case MatchedRefine:
case MatchedRefineImageOnly:
case NonMarkData:
{
if (jblt == null)
{
jblt = new JB2Blit();
}
// fall through
}
goto case NewMarkLibraryOnly;
case NewMarkLibraryOnly:
case MatchedRefineLibraryOnly:
{
if (!_encoding)
{
jshp = new JB2Shape().Init((rectype == NonMarkData) ? (-2) : (-1));
}
else if (jshp == null)
{
jshp = new JB2Shape();
}
bm = jshp.Bitmap;
break;
}
case MatchedCopy:
{
if (jblt == null)
{
jblt = new JB2Blit();
}
break;
}
}
bool needAddLibrary = false;
bool needAddBlit = false;
switch (rectype)
{
case StartOfData:
{
CodeImageSize(jim);
CodeEventualLosslessRefinement();
if (!_encoding)
{
InitLibrary(jim);
}
break;
}
case NewMark:
{
needAddBlit = needAddLibrary = true;
CodeAbsoluteMarkSize(bm, 4);
CodeBitmapDirectly(bm);
CodeRelativeLocation(jblt, bm.ImageHeight, bm.ImageWidth);
break;
}
case NewMarkLibraryOnly:
{
needAddLibrary = true;
CodeAbsoluteMarkSize(bm, 4);
CodeBitmapDirectly(bm);
break;
}
case NewMarkImageOnly:
{
needAddBlit = true;
CodeAbsoluteMarkSize(bm, 3);
CodeBitmapDirectly(bm);
CodeRelativeLocation(jblt, bm.ImageHeight, bm.ImageWidth);
break;
}
case MatchedRefine:
{
needAddBlit = true;
needAddLibrary = true;
int match = CodeMatchIndex(jshp.Parent, jim);
if (!_encoding)
{
jshp.Parent = Convert.ToInt32((Lib2Shape[match]));
}
Bitmap cbm = jim.GetShape(jshp.Parent).Bitmap;
Rectangle lmatch = (Rectangle)_libinfo[match];
CodeRelativeMarkSize(bm, (1 + lmatch.Left) - lmatch.Right, (1 + lmatch.Top) - lmatch.Bottom, 4);
// verbose("2.d time="+System.currentTimeMillis()+",rectype="+rectype);
CodeBitmapByCrossCoding(bm, cbm, match);
// verbose("2.e time="+System.currentTimeMillis()+",rectype="+rectype);
CodeRelativeLocation(jblt, bm.ImageHeight, bm.ImageWidth);
break;
}
case MatchedRefineLibraryOnly:
{
needAddLibrary = true;
int match = CodeMatchIndex(jshp.Parent, jim);
if (!_encoding)
{
jshp.Parent = Convert.ToInt32((Lib2Shape[match]));
}
Bitmap cbm = jim.GetShape(jshp.Parent).Bitmap;
Rectangle lmatch = (Rectangle)_libinfo[match];
CodeRelativeMarkSize(bm, (1 + lmatch.Left) - lmatch.Right, (1 + lmatch.Top) - lmatch.Bottom, 4);
break;
}
case MatchedRefineImageOnly:
{
needAddBlit = true;
int match = CodeMatchIndex(jshp.Parent, jim);
if (!_encoding)
{
jshp.Parent = Convert.ToInt32((Lib2Shape[match]));
}
Bitmap cbm = jim.GetShape(jshp.Parent).Bitmap;
Rectangle lmatch = (Rectangle)_libinfo[match];
CodeRelativeMarkSize(bm, (1 + lmatch.Left) - lmatch.Right, (1 + lmatch.Top) - lmatch.Bottom, 4);
CodeBitmapByCrossCoding(bm, cbm, match);
CodeRelativeLocation(jblt, bm.ImageHeight, bm.ImageWidth);
break;
}
case MatchedCopy:
{
int match = CodeMatchIndex(jblt.ShapeNumber, jim);
if (!_encoding)
{
jblt.ShapeNumber = Convert.ToInt32((Lib2Shape[match]));
}
bm = jim.GetShape(jblt.ShapeNumber).Bitmap;
Rectangle lmatch = (Rectangle)_libinfo[match];
jblt.Left += lmatch.Right;
jblt.Bottom += lmatch.Bottom;
CodeRelativeLocation(jblt, (1 + lmatch.Top) - lmatch.Bottom,
(1 + lmatch.Left) - lmatch.Right);
jblt.Left -= lmatch.Right;
jblt.Bottom -= lmatch.Bottom;
break;
}
case NonMarkData:
{
needAddBlit = true;
CodeAbsoluteMarkSize(bm, 3);
CodeBitmapDirectly(bm);
CodeAbsoluteLocation(jblt, bm.ImageHeight, bm.ImageWidth);
break;
}
case PreservedComment:
{
jim.Comment = CodeComment(jim.Comment);
break;
}
case RequiredDictOrReset:
{
if (!GotStartRecordP)
{
CodeInheritedShapeCount(jim);
}
else
{
ResetNumcoder();
}
break;
}
case EndOfData:
break;
default:
throw new ArgumentException("Image unknown type");
}
if (!_encoding)
{
switch (rectype)
{
case NewMark:
case NewMarkLibraryOnly:
case MatchedRefine:
case MatchedRefineLibraryOnly:
case NewMarkImageOnly:
case MatchedRefineImageOnly:
case NonMarkData:
{
if (xjshp != null)
{
jshp = jshp.Duplicate();
}
shapeno = jim.AddShape(jshp);
Shape2Lib(shapeno, MinusOneObject);
if (needAddLibrary)
{
AddLibrary(shapeno, jshp);
}
if (needAddBlit)
{
jblt.ShapeNumber = shapeno;
if (xjblt != null)
{
jblt = (JB2Blit)xjblt.Duplicate();
}
jim.AddBlit(jblt);
}
break;
}
case MatchedCopy:
{
if (xjblt != null)
{
jblt = (JB2Blit)xjblt.Duplicate();
}
jim.AddBlit(jblt);
break;
}
}
}
return(rectype);
}
protected abstract void CodeAbsoluteLocation(JB2Blit jblt, int rows, int columns);
protected override void CodeAbsoluteLocation(JB2Blit jblt, int rows, int columns)
{
throw new NotImplementedException();
}
protected virtual void CodeRelativeLocation(JB2Blit jblt, int rows, int columns)
{
if (!_GotStartRecordP)
{
throw new DjvuFormatException("Image no start");
}
int bottom = 0;
int left = 0;
int top = 0;
int right = 0;
if (_Encoding)
{
left = jblt.Left + 1;
bottom = jblt.Bottom + 1;
right = (left + columns) - 1;
top = (bottom + rows) - 1;
}
bool new_row = CodeBit((left < _LastLeft), _OffsetTypeDist);
if (new_row)
{
int x_diff = GetDiff(left - _LastRowLeft, _RelLocXLast);
int y_diff = GetDiff(top - _LastRowBottom, _RelLocYLast);
if (!_Encoding)
{
left = _LastRowLeft + x_diff;
top = _LastRowBottom + y_diff;
right = (left + columns) - 1;
bottom = (top - rows) + 1;
}
_LastLeft = _LastRowLeft = left;
_LastRight = right;
_LastBottom = _LastRowBottom = bottom;
FillShortList(bottom);
}
else
{
int x_diff = GetDiff(left - _LastRight, _RelLocXCurrent);
int y_diff = GetDiff(bottom - _LastBottom, _RelLocYCurrent);
if (!_Encoding)
{
left = _LastRight + x_diff;
bottom = _LastBottom + y_diff;
right = (left + columns) - 1;
top = (bottom + rows) - 1;
}
_LastLeft = left;
_LastRight = right;
_LastBottom = UpdateShortList(bottom);
}
if (!_Encoding)
{
jblt.Bottom = bottom - 1;
jblt.Left = left - 1;
}
}
